Sheffield bedroom extensions, designed and built
From the first sketch to final sign-off, we plan and build bedroom extensions in Sheffield and the surrounding South Yorkshire area.
- Guide price in SheffieldFrom £24,000 inc VAT
- PlanningUsually a householder application
- Build time14–22 weeks on site
- Postcode districtsS1, S2, S3, S4, S7
Who a bedroom extension suits
- Growing families
- Multi-generational households
- Homeowners who want an en-suite master bedroom
Covering Sheffield
Site visits are available across Sheffield (S1, S2, S3, S4, S7, S10). The same team covers Rotherham (6 miles), Rawmarsh (7 miles), Dinnington (11 miles), Barnsley (12 miles), all within easy reach.
Just over the Derbyshire border, Dronfield is about 6 miles away. Homes across Yorkshire and the Humber range from back-to-back and through terraces to large suburban semis, and extension options vary with them.
Bedroom extension prices in Sheffield
Labour and material costs vary across the UK, so for Sheffield we use our Yorkshire and the Humber factor (×0.94). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Sheffield: £1,500 to £3,010 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| One bedroom 12 m² | £24,000 – £30,000 | £24,000 – £32,000 | £27,000 – £36,500 |
| Bedroom and en-suite 18 m² | £27,000 – £33,000 | £32,000 – £41,500 | £40,500 – £54,500 |
| Two rooms 30 m² | £45,000 – £55,000 | £53,500 – £69,500 | £67,500 – £90,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
Planning and approvals in Sheffield
In England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Common questions in Sheffield
Do you cover all of Sheffield?
Yes. We cover Sheffield and the surrounding parts of South Yorkshire. Site visits are free and there is no obligation.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Sheffield, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How long does a bedroom extension take to build in Sheffield?
On site, typically 14 to 22 weeks once approvals are in place. Before that, allow 8–14 weeks design and approvals.
Will a new bedroom need planning permission?
Upstairs additions usually do. Ground-floor rooms may fall within permitted development, depending on size and position.
How much does a bedroom extension cost?
Our guide range is about £1,500 to £3,010 per m² including VAT. A bedroom with an en-suite of about 18 m² is typically £32,000 to £41,500 at standard spec, depending on whether it is part of a larger two-storey build.
Book a free site visit in Sheffield
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.